Cinematographic stereoscope



H. R. ZIMMER. CINEMATOGRAPHIC STEREOSCOPE.

APPLICATION FILED FEB. 4. |919.

Patented Mar. 23, 1920.

UNITED STATES PATENT OFFICE.

-HRRY R. ZIMMER, OF LOS ANGELES, CALIEUORNIA, ASSIGOR T0 THE STEREOTINTO- GRAPH COMPANY, A CORPORATION OF DELAWARE.

CINEMATOGRAPHIC STEREOSOPE;

` Specification of Letters Patent. Patented Dhu'. 23, 1920.

miljoenen med February 4, 191e. serial N9. 275,275.

TQ all 'whoml it mai concern.' y

Be itknown t at I, HARRY R. ZIMMER,

.a citizen of the UnitedStates residing at Los Angeles, county of Los n les, and

i State of California, have invente a certain Inew and useful` Cinematographic Stereoscope, of 'which the following is a specification.

My invention relates to a means for making cinematograph' pictures, and has especial reference to a device for producing stereoscopic pictures more particularly detailed in my co-pending application for patent filed 'January 27, 1919, Serial No. 273,430, an object of the invention being to provide a simple and inexpensive apparatus for stereoscopically recording pictures, which maybe easily and conveniently attached to any motion icture making machine, and by means of w iich the number of ictures on a film may be increased and the lineal extent of the film considerably reduced.y

Other objects will appear from the subjoincd. specification in connection with the accom anying drawing which represents a plan view, partially in section of a preferred embodiment of the invention.

A base or plate 1, upon which are mounted the elements of the optical instrument, is adapted for attachment to a cinematographic machine, and may be secured to the front hoard2 of such a machine by screws 3, or in any other manner, so that the refractcd images or objects will be reflected on a film 4, operated intermittently by any of the well known kinetographic movements. i

In the base or plate 1 are mountedtwo tubes 5 and 6, in which telescope respective units 7 and 8, containing the lenses 9 and 10, and diaphragms not shown, and bein ad known means relativy to of a, retracted or reflected object.

The lenses 9 and 10 in this instance are compounded or arranged for different focal lengths whereby the distance of refraction of one ens is greater than that of the other and the subsequent viewing of the two refracted images as a merged one will yield an intensity in detail and depth not seen in any 'sin le refraction.

e tubes 5 and 6 and their telescoping I units 7 Aand 8 converge toward each other from their bases at such an angle that the object or image, or in other words, the longitudinal axes of the tubes 5 and 6 and units 7 and 8 extend iii ci'invergent or approximat ing planes, meeting some definite point.

The tubes 5 and 6 are interconnected with zi hollow cylindrical body 11, dis sed between said tubes 5 and 6, by angu arly dis posed annular joints 12 and 13 respectively, establishing light communication between the tubes 5 and 6 and the cylindrical body 11.

The cylindrical body 11 is screwed or otherwise secured in an orifice 14 inthe base or plate 1 and is open at one end, to permit the transmission of thelight reflection to the film 4. By a wall or partition' 15, such cylindrical body is divided into twocompartments l16 and 17, the partition also constituting;r or making;r the divisional delineation betwcc'i the pictures.

ln cach tube and secured to said base 1, is :i block 18 and 19 respectively, for supporting an angularly disposed reflector, prism or mirror20 and 21, whichreflects the objects or images focused thereon by the lenses 9 and 10, onto reflectors, prisms or mirrors 22 and l23, mounted on a block 24, secured to a cap 25 threading on the cylindrical body 11` and having the form of an cqiiiangular triangle, whose sides coincide with the angularity ,of the reflectors, prisms or mirrors 20 and 21 in the tubes 5 and 6, and whose apex A forms the terminus of the wall or partition 15. The reflect rs, prisms oimirrors 22 and 23 aie therefore, also 'oincident with the reflectors, prisms or mirrors 20 and 21` and by means of them the objects,

reflected by the mirrors 20 and21 are ref'.

flcctcd upon the film.

A rotatory shutter 26 controls the exposure and closure during the respective standstill and intermittent movement of the films, in the usual manner.

. What I claim is:

Y 1. A. stereoscopic attachment for cincinatographic cameras, comprising a base, a plurality of angiilarly `disposed tubes mountcd thereon, lens carrying units telescoping in said tubes1 a cylindrical body open at one cnil, and conjoined with said tubes by angular passageways, a partition dividing said body into two compartments, and a means in said tubes and compartments to reflect images through the open end of said body.

2. A stereoscopic attachment for cinematographic cameras, comprising a base, a-

plurality of singularly disposed tubes mounted thereon, lens carryin f units telescoping in said tubes, a cylindrca body between said tubes o en at one end and conjoined with said tu es with passageway., a partition dividing said body into two compartments, an angularly disposed reflecting means in each of said tubes and in line with the focus of the lenses, and a reflecting means in each of said compartments and singularly disposed relatively to the reflecting means in said tubes.

3. A stereoscopic attachment for cinematographic cameras, com )rising two angularly disposed tubes, each aving a telesco ing lens carrying unit, a cylindrical bo y between and connected with said tubes by passageways, said body being open at one end, a partition dividing said body into two compartments and a series of reflecting means in said tubes and. body to reflect images focused by said lenses.

4. A stereoscoliic Iattachment for cinematographic caineraszeomprising a base having an aperture, two tubes mounted on said buse and angularly disposed relatively to each other, a lens carrying unit telescopin in each tube, a block in each tubeJ a re ectin means angularly mounted on each 4block an in line with the focus of the lenses,

an open ended cylindrical body between said tubes and extending in said aperture, means forming passageways conjoiningr the tubes and body, a cap on said body, a block on said cap, reflecting means on said block and disposed singularly relatively to said rellecting means in said tubes, and a partition in said cylindrical body. A stereoscopic attachment for cinelnatographic cameras, comprising a. base having an aperture, two tubes mounted on said base and angularly disposed relatively to each other, a lensl carrying r unit telescopingr in each tube, an singularly disposed r'e- Hector in rear end of cach tube and in-line with the focus of the lenses, a cylindrical body between said tubes and extending in said aperture, means forming passageways Conjoining the tubes and body, a partition in and dividing said body into two compartments, and a reflector in the forward end of cach of said compartments and disposed in line with the reflector in said tubes.

In testimony whereof I have set my hand in the presence of two witnesses.

HARRY R. ZIMMER.

Witnesses W. H. l) UrroN, ANU-ox (lnon'rzmrn, J r. 

